US4321869A - Device for driving or synchronizing cylinders in offset printing presses - Google Patents

Device for driving or synchronizing cylinders in offset printing presses Download PDF

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Publication number
US4321869A
US4321869A US06/053,802 US5380279A US4321869A US 4321869 A US4321869 A US 4321869A US 5380279 A US5380279 A US 5380279A US 4321869 A US4321869 A US 4321869A
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US
United States
Prior art keywords
gear
spur gear
clamping plate
threaded
cylinders
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US06/053,802
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English (en)
Inventor
Willi Jeschke
Hugo Rambausek
Paul Schilling
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Heidelberger Druckmaschinen AG
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Heidelberger Druckmaschinen AG
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Assigned to HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT reassignment HEIDELBERGER DRUCKMASCHINEN AKTIENGESELLSCHAFT ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: JESCHKE, WILLI, RAMBAUSEK, HUGO, SCHILLING, PAUL
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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
    • B41F—PRINTING MACHINES OR PRESSES
    • B41F13/00—Common details of rotary presses or machines
    • B41F13/008—Mechanical features of drives, e.g. gears, clutches
    • B41F13/012—Taking-up backlash
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/008—Gearings or mechanisms with other special functional features for variation of rotational phase relationship, e.g. angular relationship between input and output shaft
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S474/00—Endless belt power transmission systems or components
    • Y10S474/90—Phase variator

Definitions

  • the invention relates to a device for driving or synchronizing cylinders in offset printing presses or machines.
  • the half-tone dots of at least one of the colors of a multi-color print are displaced in the machine travel direction and, in the latter case, opposite to the machine travel direction. Even turning or rotational errors in the ⁇ (micron) range are enough to detract noticeably from the quality of the printed product.
  • a drive for cylinders of an offset printing machine having a gear train constructed of spur gears disposed as drive gears on respective shafts of the cylinders, and including clamping devices for synchronizing rotation of the cylinders, the clamping devices being rotatable with the spur gears respectively associated therewith and having respective gear rims deformable more or less in accordance with an adjustment thereof, comprising a clamping plate respectively disposed coaxially to the spur gears, the spur gears being helically toothed, and at least two of the clamping devices mounted on the clamping plates, respectively, and acting in radial direction upon the gear rim of the spur gear respectively associated therewith.
  • the helically-toothed spur gear and the clamping plate are coaxially bolted in common to the drive end of the shaft journal of a respective cylinder, the spur gear being formed with threaded bores disposed symmetrically to the periphery thereof, threaded bolts threadedly secured in the threaded bores, the threaded bolts having respective free ends extending through a respective bore formed in the clamping plate, and an adjusting nut located on each of the threaded bolts at both sides of the clamping plate.
  • the shaft journal projects from a wall of the frame of the printing machine and the clamping plate is disposed on the shaft journal at a side of the helically-toothed spur gear facing toward the frame wall, the clamping plate being formed with threaded bores disposed symmetrically to the periphery thereof, threaded bolts threadedly secured in the threaded bores, the spur gear being formed with bores through which the threaded bolts, respectively, extend, and an adjusting nut respectively located on each threaded bolt at each lateral surface of the spur gear.
  • the drive includes a slot and key connection formlockingly fastening the clamping plate to the drive side of the shaft journal, the clamping plate having a ring flange, a gear rim, bolts threadedly securing the gear rim to the ring flange, the gear rim being formed with threaded bores disposed symmetrically to the periphery thereof, the threaded bolts being threadedly secured in the threaded bores, the threaded bolts having respective free ends extending through a respective bore formed in the clamping plate, and an adjusting nut located at opposite sides of the clamping plate on each of the threaded bolts.
  • FIGS. 1 to 5 are diagrammatic views of offset printing press layouts wherein the device for driving or synchronizing cylinders according to the invention is used to advantage;
  • FIGS. 6 and 7 are cross-sectional and front elevational views, respectively, of a drive gear with a clamping plate of the invention.
  • FIG. 8 is a diagrammatic representation of the deformation of a drive gear such as that of FIG. 6;
  • FIGS. 9 and 10 are views similar to that of FIG. 6 of differently modified embodiments of the invention for helical-toothed spur gears;
  • FIG. 11 is a view similar to those of FIGS. 9 and 10 of a further embodiment of the invention wherein a helical or straight-toothed drive gear is formed integral with the clamping plate;
  • FIGS. 12 and 13 as well as 14 and 15, respectively, are views similar to those of FIGS. 6 and 7, respectively, of two additional different embodiments of the invention showing straight-toothed drive gears with clamping means provided in recesses formed in the gear body per se; and
  • FIG. 16 is a view similar to that of FIG. 6 showing a helical-toothed spur adjustably mounted by means of support bolts on the end of a drive journal.
  • FIG. 1 there is shown diagrammatically therein a single-color sheet-fed rotary offset printing machine having an impression cylinder 1, a blanket cylinder 2 and a plate cylinder 3 serially engaging one another, and an ink-dampening unit 4 for supplying ink to the plate cylinder 3.
  • sheets to be printed are fed over a feed table 6 and an advance gripper or pregripper 7 to the impression cylinder 1 and from there, after being printed, are delivered by a delivery system 8 to a delivery pile 9 on which they are deposited.
  • FIG. 2 there is diagrammatically shown a two-color sheet-fed rotary offset printing machine having a feed pile 5 from which sheets are fed over a feed table 6 to a feed drum 10 and from the latter onto a double-diameter common impression cylinder 11 whereon the sheet is printed from a blanket cylinder 2 engaged by a plate cylinder 3 to which ink and dampening liquid are fed by an inking-dampening unit 4.
  • the sheet is printed with a second color by a second printing unit formed of another blanket cylinder 2, plate cylinder 3 and inking-dampening unit 4.
  • the sheet which has then been printed in two colors is advanced to the delivery system 8 which delivers and deposits the sheet on the delivery pile 9.
  • the two-color sheet-fed rotary printing machine according to FIG. 3 behaves in a similar manner to that of FIG. 2.
  • Three sheet transfer cylinders 14, 15 and 16 are disposed between the two printing units 12 and 13.
  • the middle sheet transfer cylinder 15 has double the diameter of the other cylinders 14 and 16.
  • Each of the printing units 12 and 13 are again, respectively, made up of an impression cylinder 1, a blanket cylinder 2, a plate cylinder 3 and an inking-dampening unit 4.
  • a sheet is fed from a feed pile 5 by means of a feed table 6 and a pregripper 10 to the impression cylinder 1 of the first printing unit 12 and, after the first printing operation has been performed, is transferred by means of the three sheet transfer cylinders 14, 15 and 16 to the impression cylinder 1 of the second printing unit.
  • the sheet is fed from a delivery unit 8 to a delivery pile 9.
  • the drive gear of the double-size sheet transfer cylinder 15 has a defect or fault, this affects the drive gears of the cylinders of both printing units 12 and 13 so that, exactly as for the two-color sheet fed rotary offset printing machine according to FIG. 2, mackling or doubling occurs in two-step rhythm on the printed product.
  • a clamping and adjusting device according to the invention must be provided on the drive gear of the double-size transfer cylinder 15.
  • the embodiment of a two-color sheet-fed rotary offset printing machine according to FIG. 4 differs from that of FIG. 2 in that the impression cylinders 17 and 18 of both printing units 12 and 13 have a double-length diameter, and only one sheet transfer cylinder 15 having a double-length diameter is provided between the two printing units 12 and 13.
  • the other parts of the embodiment of FIG. 4, namely the feed pile 5, the feed table 6, the feed drum 10, the blanket cylinders 2, the plate cylinders 3, the ink-dampening units 4, the delivery system 8 and the delivery pile 9 are identical with the corresponding components, both as to function and operation, in the hereinbefore-mentioned embodiments, of the invention.
  • FIG. 5 shows a possible layout of the cylinders of such a four-color sheet-fed rotary offset printing machine in series or inline disposition.
  • the four printing units 20, 21, 22 and 23 are, respectively, connected to each mutually adjacent printing unit thereof by a respective sheet transfer cylinder 24, 25 and 26.
  • the middle sheet transfer cylinder 25, which mutually connects the printing units 21 and 22 has a triple-length diameter, whereas the other two sheet transfer cylinders 24 and 26 have only a double-length diameter.
  • the reference-numeral identification of the other parts of the four-color sheet-fed rotary offset printing machine of FIG. 5 otherwise corresponds to that for like parts in the other embodiments shown in the preceding figures and described hereinbefore in this specification.
  • FIGS. 6 and 7 diagrammatically illustrate the application of a clamping device according to the invention.
  • the drive and of a shaft journal 27 for a non-illustrated sheet-transfer cylinder is rotatably mounted in a roller bearing 29 in a side wall 28 of a printing machine, the roller bearing 29 being, carried by a bearing bushing 30 mounted on the side wall 28.
  • a clamping plate 32 is centrically fastened, together with a helically-toothed spur gear 31, to the free end of the shaft journal 27 by clamping bolts 34 screwed into the end face 33 of the shaft journal 27.
  • threaded bores 35 are formed wherein threaded bolts 36 are screwed, which are secured against becoming unscrewed by lock nuts 37.
  • the free end of the threaded bolts 36 extend through corresponding bores 38 formed in the clamping plate 32.
  • respective adjusting nuts 39 and 40 are provided on each threaded bolt 36.
  • FIG. 8 there is diagrammatically shown how a deformation of the spur gear 31 is effected in axial direction.
  • a section of the spur gear 31 is diagrammatically illustrated in plan view in FIG. 8, only the leading flank line 41 of a tooth being illustrated, however.
  • an assumed point 43 thereon travels with the flank line 41 into the upper location 44 thereof, as shown in FIG. 8.
  • the action or contact point 43 thus moves in peripheral direction over a distance 45 to the left-hand side of the figure.
  • FIG. 9 A reversal of the disposition of the clamping device of FIG. 6 is shown in FIG. 9 wherein the clamping plate 32 is slipped onto the cylinder-shaft journal 27 with a sliding fit, and is firmly connected by bolts 50 to the helically-toothed spur gear 31.
  • the spur gear 31 is again centrially or coaxially fastened by bolts 34 to the end face of the cylinder-shaft journal 27.
  • the threaded bolts 36 are screwed into threaded bores 35 which are provided adjacent the periphery of the clamping plate 32 and distributed symmetrically thereto.
  • a lock nut 37 secures each threaded bolt 36 again against becoming unscrewed.
  • a bore 38 for each threaded bolt 36 is located in the spur gear 31, the free end of the respective threaded bolt 36 extending through each of the bores 38.
  • the adjusting nuts 39 and 40 are again provided on each of the threaded bolts 36 at both sides of the spur gear 31.
  • FIG. 10 features the clamping plate 32 and a ring flange 51 which are integrally constituted for accomodating a helically-toothed gear rim 52.
  • the gear rim is fastened by bolts 53 to the ring flange 51.
  • the clamping plate 32 together with the ring flange 51 are firmly mounted on the free end of the cylinder-shaft journal 27 by a slot-and-key 54 connection and a locking ring 55.
  • the spur gear 60 may be either helically or straight-toothed.
  • the spur gear 60 is again coaxially or centrically connected firmly to the end face of the shaft journal 27 by bolts 34.
  • the gear rim of the spur gear 60 changes or merges, at the inside thereof, into a clamping ring 61 which extends coaxially to the rotary axis of the shaft journal 27, and is thus integral with the spur gear 60.
  • Bores 38 are formed in the clamping ring 61 symmetrically to the periphery thereof, and extend radially outwardly and again through the threaded bolts 36.
  • the lower end of the threaded bolts 36 is screwed into radially extending threaded bores 35 formed in the shaft journal 27.
  • Lock nuts 37 prevent the unscrewing of the threaded bolts 36 from the threaded bores 35.
  • adjusting nuts 39 and 40 are provided by means of which a tensile or compressive force is able to be exerted upon the clamping ring 61.
  • An adjustment of the adjusting nuts 39 and 40 causes the gear rim 63 of the spur gear 60 to be deformed either outwardly or inwardly about the web 64 and simultaneously in axial direction. This deformation would have the effect shown in FIG. 8 for helical toothing. A local outward or inward displacement or shift of the tooth flanks would result in a corresponding change in the pitch circle of the teeth, due to which, likewise, an asynchronous rotation of adjacent spur gears can be eliminated.
  • FIGS. 12 and 13 show a clamping device according to the invention for straight-toothed spur gears.
  • a gear body 65 is firmly mounted by means of a slot-and-key connection 54 and a circlip or snap ring 55 on the shaft journal 27.
  • a straight-toothed gear rim 66 has flanged webs 67 which are inwardly directed symmetrically to the periphery of the gear rim 66, and through which the gear rim 66 is firmly connected by bolts 68 to the gear body 65.
  • respective adjusting bolts 70 are located which are screwed into radial threaded bores 71 formed in the gear body 65 and secured by lock nuts 72 against unintentional adjustment or shifting thereof.
  • the adjusting bolts 70 have respective bolt heads 73 engaging the annular inner surface of the gear rim 66.
  • FIGS. 14 and 15 show a further clamping device embodiment provided for straight-toothed spur gears in accordance with the invention, by means of which rotational defects or faults can be eliminated.
  • a ring-shaped gear body 75 is fastened coaxially to the free end of the shaft journal 27 by bolts 34.
  • a gear rim 76 is shrink-fitted onto the gear body 75.
  • the gear body 75 is formed with four recesses 77 distributed symmetrically to the periphery of the gear rim 76 and having a respective turnbuckle 78 disposed therein.
  • Each turnbuckle 78 has at one end thereof a fine-threaded bore with a right-hand thread and at the other end thereof a fine-threaded bore with a left-hand thread.
  • Threaded bores 81 and 82 are also machined in the side walls 79 and 80 defining the recesses 77, the bores 81 and 82 having threads which are opposite to one another.
  • a threaded bolt 83 with a right-hand thread is screwed into the threaded bore 81, and a threaded bolt 84 with a left-hand thread into the opposite threaded bore 82.
  • Lock nuts 85 secure both threaded bolts or pins 83 and 84 against becoming unscrewed.
  • the turnbuckle 78 is screwed with the left-hand and right-hand threaded bores thereof onto the free ends of both threaded bolts 83 and 84.
  • a tensile or a compressive force can be exerted upon the side walls 79 and 80 defining the recesses 77. Both the one or the other causes a deformation of the gear rim 76 in radial direction. In this manner, it is possible, with these turnbuckles 78, likewise to eliminate unsynchronized rotation of adjacent spur gears caused by gear faults or defects.
  • a spur gear 86 which is helically toothed be firmly connected by strong support bolts 87 to the shaft journal 27.
  • support bolts 87 Three, four or more of such support bolts 87 may be provided. They are screwed into threaded bores formed in the end faces of the shaft journal 27 and secured therein against turning.
  • the support bolts 87 extend with play or clearance through a respective bore 89 formed in the spur gear 86.
  • a keyed-end nut 90 is provided, respectively, on each support bolt 87 on opposite sides of the spur gear 86.
  • the spur gear is centered by a centering pin 88 of the shaft journal 27 which suitably projects or fits into a centering bore 91 formed in the spur gear 86.
  • the position of the spur gear 86 relative to the rotational axis of the shaft journal 27 can be varied by adjusting the nuts 90 of one or more of the support bolts 87.
  • displacement of the gear rim in axial direction is, for the most part, involved. Due to the helical toothing, such a displacement of the spur gear 86 effects a shift in the tooth flank line as is illustrated in FIG. 8.
  • a spur gear is mounted on a shaft journal of a cylinder so as to be adjustable in axial direction, the possibility is likewise afforded thereby, when employing helically-toothed gearing, of eliminating rotational faults or defects merely by adjusting or shifting the bearings. Deformation of the gear rim is then unnecessary.
  • tension and compression bolts employed in the various embodiments of the invention shown in FIGS. 1 to 16
  • other machine elements such as eccentric bolts, wedges and the like.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Rotary Presses (AREA)
  • Gears, Cams (AREA)
  • Ink Jet (AREA)
  • Inking, Control Or Cleaning Of Printing Machines (AREA)
  • Soil Working Implements (AREA)
  • Rigid Pipes And Flexible Pipes (AREA)
  • Silver Salt Photography Or Processing Solution Therefor (AREA)
  • Control Of Multiple Motors (AREA)
  • Valve Device For Special Equipments (AREA)
US06/053,802 1978-07-01 1979-07-02 Device for driving or synchronizing cylinders in offset printing presses Expired - Lifetime US4321869A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE2829026A DE2829026C2 (de) 1978-07-01 1978-07-01 Vorrichtung zum Antrieb oder zur Synchronisierung von Zylindern in Offsetdruckmaschinen
DE2829026 1978-07-01

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US4321869A true US4321869A (en) 1982-03-30

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US06/053,802 Expired - Lifetime US4321869A (en) 1978-07-01 1979-07-02 Device for driving or synchronizing cylinders in offset printing presses

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US (1) US4321869A (de)
EP (1) EP0008325B1 (de)
JP (1) JPS5914350B2 (de)
AT (1) ATE1049T1 (de)
AU (1) AU525153B2 (de)
BR (1) BR7904158A (de)
CA (1) CA1147983A (de)
DE (1) DE2829026C2 (de)
DK (1) DK145410C (de)
ES (1) ES482011A1 (de)
NO (1) NO150390C (de)
ZA (1) ZA793014B (de)

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4791869A (en) * 1987-11-30 1988-12-20 Komori Printing Machinery Co., Ltd. Phase adjusting apparatus for sheet-fed printing press
US4796050A (en) * 1986-02-03 1989-01-03 Ricoh Company, Ltd. Mechanism for driving photosensitive drums
US4976197A (en) * 1988-07-27 1990-12-11 Ryobi, Ltd. Reverse side printing device employing sheet feed cylinder in sheet-fed printer
US5418600A (en) * 1993-12-17 1995-05-23 Xerox Corporation Conformable friction drive system for belt or drum transport
US5546669A (en) * 1994-07-12 1996-08-20 Brennan; Thomas M. Cylinder positioning apparatus for offset presses and duplications
US6401608B1 (en) * 2000-05-05 2002-06-11 Halm Industries, Co., Inc. Printing press with perfecting station
US6549146B2 (en) 2000-04-25 2003-04-15 Perkins Engines Company Limited Timing apparatus having a gear incorporating a timing ring and method of manufacturing the same

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3833245C1 (en) * 1988-09-30 1989-11-16 Man Roland Druckmaschinen Ag, 6050 Offenbach, De Drive for cylinders and drums transporting sheets
DE3834429C1 (en) * 1988-10-10 1989-12-21 Man Roland Druckmaschinen Ag, 6050 Offenbach, De Gearwheel for driving the cylinders of offset printing machines
DE4023479A1 (de) * 1990-07-24 1992-02-06 Roland Man Druckmasch Zahnrad fuer den antrieb der zylinder von offsetdruckmaschinen
DE4025668A1 (de) * 1990-08-14 1992-02-20 Roland Man Druckmasch Zahnrad fuer den antrieb der zylinder von offsetdruckmaschinen

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1069748A (fr) 1951-12-27 1954-07-12 Perfectionnements aux dispositifs de transmission à engrenages utilisés dans les presses rotatives d'impression
DE1805911U (de) 1959-12-08 1960-02-11 Henschel Werke G M B H Klemmband aus elastischem material zum befestigen von leitungen.
US2948216A (en) * 1958-07-28 1960-08-09 Harris Intertype Corp Plate cylinder register mechanism
CH386793A (de) 1959-08-11 1965-01-15 Maag Zahnraeder & Maschinen Ag Zahnradgetriebe mit konstantem Flankenspiel
US3472092A (en) * 1967-10-30 1969-10-14 Singer Co Antibacklash gear
GB1209959A (en) 1967-02-23 1970-10-28 Marinoni Machines Et Materiel Method of and apparatus for adjusting the relative angular position of two toothed wheels in multi-colour printing presses
DE2023510A1 (de) 1969-06-06 1972-02-17 VEB Polygraph Leipzig Kombinat fur polygraphische Maschinen und Ausrüstungen, χ 7050 Leipzig Antrieb fur wahlweisen Schon oder Schon und Widerdruck an Mehrfarben Bogen rotationsdruckmaschinen

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3005580A (en) * 1958-07-14 1961-10-24 Malia John Peter Tape dispenser-container
GB1160011A (en) * 1966-05-07 1969-07-30 Maschf Augsburg Nuernberg Ag Cylinder Drives for Multi-colour Sheet-fed Rotary Printing Machines

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR1069748A (fr) 1951-12-27 1954-07-12 Perfectionnements aux dispositifs de transmission à engrenages utilisés dans les presses rotatives d'impression
US2948216A (en) * 1958-07-28 1960-08-09 Harris Intertype Corp Plate cylinder register mechanism
CH386793A (de) 1959-08-11 1965-01-15 Maag Zahnraeder & Maschinen Ag Zahnradgetriebe mit konstantem Flankenspiel
DE1805911U (de) 1959-12-08 1960-02-11 Henschel Werke G M B H Klemmband aus elastischem material zum befestigen von leitungen.
GB1209959A (en) 1967-02-23 1970-10-28 Marinoni Machines Et Materiel Method of and apparatus for adjusting the relative angular position of two toothed wheels in multi-colour printing presses
US3472092A (en) * 1967-10-30 1969-10-14 Singer Co Antibacklash gear
DE2023510A1 (de) 1969-06-06 1972-02-17 VEB Polygraph Leipzig Kombinat fur polygraphische Maschinen und Ausrüstungen, χ 7050 Leipzig Antrieb fur wahlweisen Schon oder Schon und Widerdruck an Mehrfarben Bogen rotationsdruckmaschinen

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4796050A (en) * 1986-02-03 1989-01-03 Ricoh Company, Ltd. Mechanism for driving photosensitive drums
US4791869A (en) * 1987-11-30 1988-12-20 Komori Printing Machinery Co., Ltd. Phase adjusting apparatus for sheet-fed printing press
US4976197A (en) * 1988-07-27 1990-12-11 Ryobi, Ltd. Reverse side printing device employing sheet feed cylinder in sheet-fed printer
US5418600A (en) * 1993-12-17 1995-05-23 Xerox Corporation Conformable friction drive system for belt or drum transport
US5546669A (en) * 1994-07-12 1996-08-20 Brennan; Thomas M. Cylinder positioning apparatus for offset presses and duplications
US5636573A (en) * 1994-07-12 1997-06-10 Brennan; Thomas M. Cylinder positioning apparatus for offset presses and duplicators
US6549146B2 (en) 2000-04-25 2003-04-15 Perkins Engines Company Limited Timing apparatus having a gear incorporating a timing ring and method of manufacturing the same
US6401608B1 (en) * 2000-05-05 2002-06-11 Halm Industries, Co., Inc. Printing press with perfecting station

Also Published As

Publication number Publication date
DK145410C (da) 1983-04-18
ATE1049T1 (de) 1982-06-15
DK271879A (da) 1980-01-02
NO150390C (no) 1984-10-10
AU525153B2 (en) 1982-10-21
EP0008325B1 (de) 1982-05-19
NO792191L (no) 1980-03-24
EP0008325A1 (de) 1980-03-05
JPS5914350B2 (ja) 1984-04-04
CA1147983A (en) 1983-06-14
JPS5522991A (en) 1980-02-19
BR7904158A (pt) 1980-04-15
ZA793014B (en) 1980-06-25
DE2829026C2 (de) 1981-10-08
NO150390B (no) 1984-07-02
AU4850479A (en) 1980-01-10
DK145410B (da) 1982-11-15
DE2829026A1 (de) 1980-01-03
ES482011A1 (es) 1980-03-01

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